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自从库兹巴斯在世界地下采煤史上,第一次创造出掩护支架采煤法以来,到1986年该法已应用了50年。掩护支架采煤法已成为库兹巴斯急倾斜厚及中厚煤层的主要采煤法。 如所周知,所创造出的掩护支架曾被称为“开采急倾斜厚煤层用的移动式金属掩护支架”(图1)。掩护支架是一种不分节的连续的顶盖,它装有一系列端头削尖了的支撑物,以破坏煤体和支撑掩护支架,形成工作空间。掩护支架尺寸,沿走向50～100米,宽度取决于煤厚。为了从掩护支架下放煤,建议掘出一系列的溜煤眼。
Since Kuzbass first created the shield mining method in the underground mining history of the world, it had been in use for 50 years by 1986. The shield mining method has become the main coal mining method of Kuzbass steep thick and medium thick coal seam. As we all know, the shield was created as a “mobile metal shield for mining steep thick coal seams” (Figure 1). The shield bracket is a continuous, non-sectioned cap that contains a series of sharpened end supports that destroy the coal and support the shield support to create a work space. Shield support size, along the direction of 50 to 100 meters, the width depends on the coal thickness. In order to release the coal from the shield, it is advisable to dig a series of coal feet.